Gentner PA870 User manual

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TM
Installation & Operations Manual
8-Channel Power Amplifier
PA870

PA870 Installation and Operations Manual
Gentner Part No. 800-165-001
March 000 (Rev. 1.0)
©2000 by Gentner Communications Corporation. All rights reserved. No part of this manual may be reproduced in
any form or by any means without written permission from Gentner Communications Corporation. Printed in the
nited States of America. Gentner Communications Corporation reserves specification privileges. Information in this
manual is subject to change without notice.
Manual Development: Mike Raymond
Artwork and Illustrations: Jim Wright, Laurie Lingmann, and Mike Raymond
This equipment meets regulatory compliance standards for CSA C22.2 No. 1-98—Safety Standard for Audio, Video
and Similar Electronic Equipment and L 813—Safety Standard for Commercial Audio Equipment.

TECHNICAL SUPPORT: 1.800.283.5936 (USA) OR 1.801.974.3760
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
. Installation and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3. Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
8 Ohm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Bridged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
70 Volt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4. Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
List of Figures
Figure 1. Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Figure 2. Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Figure 3. Balanced/ nbalanced Input Device Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Figure 4. 8 Ohm Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Figure 5. Bridged Output Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Figure 6. 70 Volt Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
a le of Contents
T

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TABLE OF CONTENTS
2

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1
Congratulations on your purchase of the Gentner PA870, an 8-channel
power amplifier. This manual is designed to help you install and operate
your new amplifier.
The PA870 can power 8 Ohm and 70 Volt speaker systems
simultaneously (it comes configured for 8-Ohm operation from the
factory). This expands the amplifier’s versatility by opening up a wide
range of application possibilities, discussed in the Applications chapter
on page 11.
The PA870 delivers 25 watts (at 8 ohms and 70 volts) of power to each
of the eight channels. It also allows bridging in an 8 Ohm, one-channel
input/two-channel output configuration for 50 watts of power. Bridge
switches simplify bridging setup and protect against damaging cross
connections. Four LEDs indicate bridging status. Presence and clip
LEDs on the front and back panels notify you of signal status and help
you minimize clipping.
The PA870 requires just two rack units of space, so it conveniently fits in
a small space that requires multiple channels of amplification. Passive
cooling keeps the PA870 operating quietly.
If you have questions about the installation or use of the PA870 which
aren’t answered in this manual, please contact us at:
Phone: [phone] ( SA) or 1.801.974.3760
Fax: [phone] ( SA) or 1.801.977.0087
Internet: www.gentner.com
E-mail: [email protected]
Introduction
The PA870
Amplifier
INTRODUCTION • PA870 3

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INTRODUCTION • PA870 AMPLIFIER
4

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Installation and
Operation
Front Panel
INSTALLATION AND OPERATION • RACK MO NTING 5
The PA870 Power Amplifier comes with eight Molex plugs already
installed, eight Phoenix™-type input connectors, and an AC power cord.
You should verify that these items were shipped with your amplifier
before you begin installation. If any parts are missing, contact Gentner’s
Technical Support at 1.800.283.5936 or 1.801.974.3760.
The PA870 is designed to use two rack spaces. Gentner recommends
that you install the PA870 in a standard 19” rack using four 10-32-
thread, 1/2˝-long screws to secure the amplifier’s cabinet to rails at
least 0.1˝ thick.
If you install the unit in an enclosed box or cabinet, ensure that
ventilation holes are provided so that air circulation can cool the
amplifier.
The front panel (see Figure 1, page 6) features an ON/OFF power
switch with a red “ON” LED. The other LED indicators show signal
presence/clip (one per channel) and bridge status. Each presence/clip
LED illuminates green to show signal presence and red when clipping
occurs. Each bridge status LED illuminates amber when the channel
pair it represents is bridged.
Turn the power switch ON only after the input and speaker connections
have been made and the gain controls have been set to minimum.
NOTE: Do not place the
amplifier near sources of
heat or expose it to
moisture, irect sunlight, excessive
ust, or vibration.
✍
Mounting

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INSTALLATION AND OPERATION • FRONT PANEL
6
1. Power Switch. Switches amplifier ON. 2. Power Switch LED. Illuminates red when the power switch is ON. 3. Signal/Clip LED. Illuminates green to show signal presence, red to indicate clipping. 4. Bri ge LED. Illuminates amber when the bridging switch is ON.
Figure 1. Front Panel
3 4 3 2 1

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INSTALLATION AND OPERATION • REAR PANEL 7
Rear Panel
1. LEDs. Indicate signal presence, clipping, 5. AC Power Receptacle. Connect included and bridge status. power cord here. 2. Bri ge Switch. Enables bridging. 6. Output Bin ing Posts. Connect speakers
here.
3. Volume Control. Controls output level.
7. Molex Plug Receptacles. Receive Molex plugs
4. Phoenix Line-Level Input Receptacles. to facilitate 8Ω or 70V operation. Receives Phoenix input connectors.
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8
OUTPUT CHANNEL 3
OUTPUT CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 4 OUTPUT CHANNEL 5 OUTPUT CHANNEL 6 OUTPUT CHANNEL 7 OUTPUT CHANNEL 8
SIGNAL CLIP 1 SIGNAL
CLIP 2
VOLUME
2
SIGNAL CLIP 3 SIGNAL
CLIP 4
VOLUME
4
VOLTAGE 110V 5A
FREQUENCY 60Hz
SIGNAL CLIP 5 SIGNAL
CLIP 6
VOLUME
6
SIGNAL CLIP 7 SIGNAL
CLIP 8
VOLUME
8
VOLUME
7
VOLUME
5
VOLUME
3
VOLUME
1
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
BRIDGE 3 BRIDGE 4
BRIDGE 1 BRIDGE 2
1 2 3 4
567
Figure 2. Rear Panel

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INSTALLATION AND OPERATION • REAR PANEL
8
The rear panel controls and connectors of the PA870 amplifier are
described below. Refer to Figure 2 (page 7) for the location of each
feature.
1. LED Indicators. These LEDs indicate signal presence/clipping and
bridge status, and correspond to the LEDs on the front panel.
2. Bridge Switch. There is one bridge switch for each channel pair 1-2,
3-4, 5-6, and 7-8. Channels cannot be bridged outside of these channel
pairs. Move the bridge switch to the right to enable bridging on a
channel pair after you make the appropriate bridge connections. Note
that the shaded areas on the back panel correlate to bridge operation.
3. Volume Control. Rotate the volume control for each channel
clockwise to increase the volume. When bri ging channels, use the
volume control in the sha e area to control the output level of
both channels. The other volume control does not operate in bridged
mode.
4. Phoenix Line-Level Input Receptacles. This bank of receptacles
handles all inputs to the amplifier. The amplifier does not accommodate
mic-level inputs. When making connections, be sure to match polarity.
5. AC Power Receptacle. Connect the power cord (included with the
amplifier) to this receptacle.
6. Output Binding Posts. The output binding posts accept bare wire or
banana plugs. Connect the speakers to these posts.
7. Molex Plug Receptacles. A Molex plug (eight are included with your
PA870) must be plugged into either the 70V or 8Ω Molex plug
receptacle of each channel. Insert a Molex plug into the 70V receptacle
to configure a channel for 70V operation. se the 8Ω receptacle to
configure a channel for 8Ω operation. You can set up any combination
of 70V and 8Ω channels.
Note:
The PA870 will not operate on a given channel without a Molex
plug installe .
Channels configure for 70V output cannot be bri ge .
SIGNAL
CLIP 1 SIGNAL
CLIP 2
VOLUME
VOLUME
BRIDGE 1
1. LED In icators
SIGNAL
CLIP 1 SIGNAL
CLIP 2
VOLUME
BRIDGE 1
2. Bri ge Switch
VOLUME
1
3. Volume Control
CHANNEL 1 CHANNEL 2 CHANNEL 3
4. Phoenix Line-Level Receptacles
5. AC Power Receptacle
OUTPUT CHANNEL 1 OUTPUT CHANNEL 2
6. Output Bin ing Posts
70V /CH1 8 / CH 1
70V /CH1 8 / CH 1
7. Molex Plug Receptacles

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INSTALLATION AND OPERATION • BALANCED AND NBALANCED INP TS 9
+-
ê
+-
ê
Balance Input Unbalance Input
The PA870 can operate with balanced input devices (such as a mixer or
equalizer) and unbalanced input devices (such as a CD player or tape
deck).
Figure 3 (below) shows rear panel balanced and unbalanced input
connections. Note that with the unbalanced input source, the ground
terminal is not used.
Tip Ring Ground (sleeve) Tip Negative (sleeve)
Phoenix Plug
Figure 3. Balance /Unbalance
Input Device Connections

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INSTALLATION AND OPERATION • BALANCED AND NBALANCED INP TS
10

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3
The PA870 Power Amplifier is suitable for a wide variety of sound
reinforcement applications. These applications include multiple zones
and room combining configurations such as:
Boardrooms
Conference Rooms
Courtrooms
Meeting Rooms
Training Rooms
Small Auditoriums
Houses of Worship
Intercom Systems
Medical Facilities
When configured for 8 Ohm, non-bridged output, the amplifier provides
a maximum power output of 25 watts per channel.
Figure 4 (page 12) shows a complete 8 Ohm installation.
Applications
8 Ohm Output
APPLICATIONS • 8 OHM O TP T 11

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APPLICATIONS • 8 OHM O TP T
12
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8
OUTPUT CHANNEL 3
OUTPUT CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 4 OUTPUT CHANNEL 5 OUTPUT CHANNEL 6 OUTPUT CHANNEL 7 OUTPUT CHANNEL 8
VOLTAGE 110V 5A
FREQUENCY 60Hz
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
VCR
1
2
3
4
5
7
6
8
0
-4
-10
-30
+4
+8
+12
System
Meter Mic On
Inputs
Outputs
Routing
Enter Esc
+
-+
-
+
-
+
-
+
-
8Ω 16Ω
16Ω 4Ω
4Ω
Series
Parallel
SIGNAL
CLIP 1 SIGNAL
CLIP 2
VOLUME
2
VOLUME
1
BRIDGE 1 SIGNAL
CLIP 3 SIGNAL
CLIP 4
VOLUME
2
VOLUME
1
BRIDGE 1 SIGNAL
CLIP 5 SIGNAL
CLIP 6
VOLUME
2
VOLUME
1
BRIDGE 1 SIGNAL
CLIP 7 SIGNAL
CLIP 8
VOLUME
2
VOLUME
1
BRIDGE 1
Zone 1
Zone 2 Zone 3
Figure 4. Typical 8 Ohm
Configuration
Plug Molex
plugs into 8Ω
receptacles.
Three of eight zones shown.

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APPLICATIONS • BRIDGED O TP T 13
Bridged Output
NOTE: Channels configure
for 70V output cannot be
bri ge .
✍
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8
OUTPUT CHANNEL 3
OUTPUT CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 4 OUTPUT CHANNEL 5 OUTPUT CHANNEL 6 OUTPUT CHANNEL 7 OUTPUT CHANNEL 8
SIGNAL
CLIP 1 SIGNAL
CLIP 2
VOLUME
2
VOLTAGE 110V 5A
FREQUENCY 60Hz
VOLUME
1
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
VCR
1
2
3
4
5
7
6
8
0
-4
-10
-30
+4
+8
+12
System
Meter Mic On
Inputs
Outputs
Routing
Enter Esc
+
-
+
-
16Ω
16Ω
Gain
Adjust
Amb r No
function
+
-
8Ω 4Ω
+
-
4Ω
-
+
SIGNAL
CLIP 3 SIGNAL
CLIP 4
VOLUME
2
VOLUME
1
BRIDGE 1 SIGNAL
CLIP 5 SIGNAL
CLIP 6
VOLUME
2
VOLUME
1
BRIDGE 1 SIGNAL
CLIP 7 SIGNAL
CLIP 8
VOLUME
2
VOLUME
1
BRIDGE 1
Zon 2 — S ri s Zon 3 — Parall l
Zone 1
Figure 5. Typical Bri ge Output
Configuration
Channel pairs 1-2, 3-4, 5-6, and 7-8 may be bridged in a one-channel
input/two-channel output configuration for a maximum of 50 watts of
output power— into 8 Ohms—per bridged channel pair. Ensure that the
Molex plug is in the 8 Ohm receptacle for each bridged pair.
Figure 5 (below) shows a balanced input/bridged output configuration.
After you make the appropriate connections for bridging both channels,
insert the Molex plug into the 8 Ohm receptacle and slide the bridge
switch for the channel pair to the right (ON). The amber LED next to the
switch will indicate that bridging is active.
Plug Molex
plugs into 8Ω
receptacles

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APPLICATIONS • 70 VOLT O TP T
14
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8
OUTPUT CHANNEL 3
OUTPUT CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 4 OUTPUT CHANNEL 5 OUTPUT CHANNEL 6 OUTPUT CHANNEL 7 OUTPUT CHANNEL 8
SIGNAL
CLIP 1 SIGNAL
CLIP 2
VOLUME
2
SIGNAL
CLIP 3 SIGNAL
CLIP 4
VOLUME
4
VOLTAGE 110V 5A
FREQUENCY 60Hz
SIGNAL
CLIP 5 SIGNAL
CLIP 6
VOLUME
6
SIGNAL
CLIP 7 SIGNAL
CLIP 8
VOLUME
8
VOLUME
7
VOLUME
5
VOLUME
3
VOLUME
1
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
70V /CH1 8 / CH 1 70V /CH 2 8 / CH 2 70V /CH 3 8 / CH 3 70V /CH 4 8 / CH 4 70V /CH 5 8 / CH 5 70V /CH 6 8 / CH 6 70V /CH 7 8 / CH 7 70V /CH 8 8 / CH 8
VCR
1
2
3
4
5
7
6
8
0
-4
-10
-30
+4
+8
+12
System
Meter Mic On
Inputs
Outputs
Routing
Enter Esc
-
+
-
+
5W
5W
-
+
5W
-
+
5W
-
+-
+
10W
10W
BRIDGE 3 BRIDGE 4
BRIDGE 1 BRIDGE 2
Parall l
Zone 1
Zone 2
Figure 6. Typical 70 Volt
Configuration
The PA870 produces up to 25 watts per channel in the 70 volt mode.
The PA870 cannot operate as bridged in the 70 volt mode. Refer to
Figure 6 (below) to configure your PA870 for 70 volt output. Ensure that
the Molex plug is connected to the 70V receptacle.
70 Volt Output
Plug Molex plugs into
70V receptacles

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4
DIMENSIONS (W/H/D):
19˝ (48cm) x 13˝ (33cm) x 31⁄2˝ (9cm)
WEIGHT:
30 lbs. (13.6 kg)
POWER REQUIREMENTS:
120VAC, 50-60Hz.
POWER CONSUMPTION:
600 Watts
CONNECTORS (each channel):
Input: Removable Phoenix (line-level only)
Output: “Touch-proof” binding posts
AUDIO PERFORMANCE
General Voltage Gain (dB):
Single Input: 26dB
Differential Input: 32dB
Sensitivity (for rated power @ 8 Ohms): 1.0 Vrms
Distortion: SMPTE-IM, less than 0.05%
Frequency Response: 20Hz to 20 KHz, ±1dB, full rated power
Damping Factor: Greater than 120
Noise: 105dB below rated output (A weighted)
Input Impedance: 10k Ohms balanced, 5k unbalanced
Appendices
Specifications
APPENDICES • SPECIFICATIONS 15

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APPENDICES • SPECIFICATIONS
16
8 Ohm Configuration
Output Power Per Channel from 20Hz-20kHz: 25 Watts into 8Ω
THD: <.05% at rated power
Crosstalk: Better than 90dB
Intermod Distortion: Better than .025%
70 Volt Configuration
Output Power Per Channel from 80Hz-20kHz: 25 Watts into 8Ω
THD: <.05% at rated power
High Pass Filter: -3.5dB @60Hz
Crosstalk: Better than 85dB
Intermod Distortion: Better than .025%
Bridged Configuration
Output Power Per Bridged Channel Pair from 20Hz-20kHz: 50 Watts into 8Ω
THD: <.05% at rated power
Crosstalk: Better than 90dB
Intermod Distortion: Better than .025%
CONTROLS
Front:
AC switch, AC circuit breaker.
Back:
Bridge switch, Ch. 1 to Ch. 8 gain knobs
Indicators:
Power On: Red On/Off switch
Signal Presence/Clip: Green/Red LED (front/rear)
Bridging: Amber LED (front/rear)
PROTECTION
Cooling:
Passive
Amplifier Protection:
Full short circuit protection, thermal, open circuit, ultrasonic, and RF
protection. Stable into reactive or mismatched loads.
Load Protection:
On/Off muting, DC fault protection

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APPENDICES • TRO BLESHOOTING 17
Troubleshooting
Problem
No sound
Low 70V audio
Low 8Ω audio
8Ω speaker low frequency audio is
low or absent
8Ω speaker audio is excessively
distorted at high volume
Possible Causes
Amp not connected to AC power
Power switch is OFF
Gain control(s) adjusted too low
Channel input(s) incorrectly wired
Speaker(s) not connected
Mismatch between channel input and output connections
Circuit breaker for power switch is tripped (turn the switch off, then
on again to reset circuit breaker)
Molex plug not connected to either the 8Ω or 70V receptacle of a
given channel.
Molex plug is in the 8Ω receptacle rather than the 70V receptacle.
Molex plug is in the 70V receptacle rather than the 8Ω receptacle.
Molex plug is in the 70V receptacle rather than the 8Ω receptacle.
Molex plug is in the 70V receptacle rather than the 8Ω receptacle.
Molex plugs are in both the 70V and 8Ω receptacles of a given
channel.

Gentner Communications Corporation (Manufacturer) warrants that this
product is free of defects in both materials and workmanship. Should
any part of this equipment be defective, the Manufacturer agrees, at its
option, to:
A. Repair or replace any defective part free of charge (except
transportation charges) for a period of one year from the date of the
original purchase, provided the owner returns the equipment to the
Manufacturer at the address set forth below. No charge will be made for
parts or labor during this period;
B. Furnish replacement for any defective parts in the equipment for a
period of one year from the date of original purchase. Replacement
parts shall be furnished without charge, except labor and transportation.
This Warranty excludes assembled products not manufactured by the
Manufacturer whether or not they are incorporated in a Manufacturer
product or sold under a Manufacturer part or model number.
THIS WARRANTY IS VOID IF:
A. The equipment has been damaged by negligence, accident, act of
God, or mishandling, or has not been operated in accordance with the
procedures described in the operating and technical instructions; or,
B. The equipment has been altered or repaired by other than the
Manufacturer or an authorized service representative of the
Manufacturer; or,
C. Adaptations or accessories other than those manufactured or
provided by the Manufacturer have been made or attached to the
equipment which, in the determination of the Manufacturer, shall have
affected the performance, safety or reliability of the equipment; or,
D. The equipment’s original serial number has been modified or
removed.
E. The equipment is not returned in Gentner-approved packaging.
NO OTHER WARRANTY, EXPRESSED OR IMPLIED, INCL DING
WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTIC LAR SE, APPLIES TO THE EQ IPMENT, nor is any person or
company authorized to assume any warranty for the Manufacturer or
any other liability in connection with the sale of the Manufacturer’s
products.
Warranty
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APPENDICES • WARRANTY
18